Foot spa



FIG. 1 is a perspective, front, top and right side view of a foot spa showing my new design;

FIG. 2 is a perspective, rear, top and left side view thereof;

FIG. 3 is a perspective, rear, bottom and left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a front view thereof; and,

FIG. 9 is a rear view thereof.

The broken lines shown in the drawing views are included for illustrative purposes only, and form no part of the claimed design. 

CLAIM The ornamental design for a foot spa, as shown and described. 